<template>
  <div style="width: 100%;height: 100%" :loading="true">
    <div v-if="show" class="login" :style="'background-image:url('+ Background +');'">
      <el-form
        ref="loginForm"
        :model="loginForm"
        :rules="loginRules"
        label-position="left"
        label-width="0px"
        class="login-form"
      >
        <h3 class="title">
          用户绑定
        </h3>
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">
            <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            type="password"
            auto-complete="off"
            placeholder="密码"
            @keyup.enter.native="handleAppLogin"
          >
            <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
          </el-input>
        </el-form-item>
        <el-form-item prop="code">
          <el-input
            v-model="loginForm.code"
            auto-complete="off"
            placeholder="验证码"
            style="width: 63%"
            @keyup.enter.native="handleAppLogin"
          >
            <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
          </el-input>
          <div class="login-code">
            <img :src="codeUrl" @click="getCode">
          </div>
        </el-form-item>
        <el-form-item style="width:100%;">
          <el-button
            :loading="loading"
            size="medium"
            type="primary"
            style="width:100%;"
            @click.native.prevent="handleAppLogin"
          >
            <span v-if="!loading">登 录</span>
            <span v-else>登 录 中...</span>
          </el-button>
        </el-form-item>
      </el-form>
      <!--  底部  -->
      <div v-if="$store.state.settings.showFooter" id="el-login-footer">
        <span v-html="$store.state.settings.footerTxt" />
      </div>
    </div>
    <div v-else>...loading</div>
    <iframe v-if="openUrl !==''" :src="openUrl" style="display: none" />
  </div>
</template>
<script>
import { encrypt } from '@/utils/rsaEncrypt';
import Config from '@/settings';
import { getCodeImg, getOpenId } from '@/api/login';
import Cookies from 'js-cookie';
import Background from '@/assets/images/background.jpg';
import { getToken } from '@/utils/auth';
import { openRedirectUrl } from '@/api/portal/user/cas/index';
export default {
  name: 'Login',
  data() {
    return {
      Background: Background,
      codeUrl: '',
      cookiePass: '',
      isCas: true,
      binding: false,
      show: false,
      pt: 0,
      openUrl: '',
      loginForm: {
        username: '',
        password: '',
        rememberMe: false,
        code: '',
        uuid: ''
      },
      loginRules: {
        username: [{ required: true, trigger: 'blur', message: '用户名不能为空' }],
        password: [{ required: true, trigger: 'blur', message: '密码不能为空' }],
        code: [{ required: true, trigger: 'change', message: '验证码不能为空' }]
      },
      loading: false,
      redirect: '',
      numeral: 0,
      openId: ''
    };
  },
  created() {
    this.getWxCode();
  },
  methods: {
    getCode() {
      getCodeImg().then(res => {
        this.codeUrl = res.img;
        this.loginForm.uuid = res.uuid;
      });
    },
    getCookie() {
      const username = Cookies.get('username');
      let password = Cookies.get('password');
      const rememberMe = Cookies.get('rememberMe');
      // 保存cookie里面的加密后的密码
      this.cookiePass = password === undefined ? '' : password;
      password = password === undefined ? this.loginForm.password : password;
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password: password,
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
        code: ''
      };
    },
    handleAppLogin() {
      this.$refs.loginForm.validate(valid => {
        const user = {
          username: this.loginForm.username,
          password: this.loginForm.password,
          rememberMe: this.loginForm.rememberMe,
          openId: this.openId,
          code: this.loginForm.code,
          uuid: this.loginForm.uuid
        };
        if (user.password !== this.cookiePass) {
          user.password = encrypt(user.password);
        }
        if (valid) {
          this.loading = true;
          this.$store.dispatch('LoginWx', user).then(() => { // 执行登录
            this.loading = false;
            this.$router.push({ path: '/uc/mobile' });// 登录成功，跳转到指定地址，或者根路径
          }).catch(() => { // 登录异常，重新获取验证码
            this.loading = false;
            this.getCode();
          });
        } else {
          console.log('error submit!!');
          return false;
        }
      });
    },
    getWxCode() {
      const code = this.$route.query.code;
      const redirect = this.$route.query.redirect;
      if (getToken()) {
        this.show = false;
        if (undefined !== redirect && redirect !== null && redirect !== '') {
          openRedirectUrl({ code: redirect }).then(res => {
            const { data } = res;
            if (data.state === 200 || data.state === 301) {
              this.openUrl = data.url;
              setTimeout(() => {
                window.open(data.openUrl);
              }, 1000);
            }
          });
        } else {
          this.$router.push({ path: '/uc/mobile' });
        }
      } else if (code == null || undefined === code || code === '') {
        const url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid=' + Config.appid + '&redirect_uri=';
        const client = (undefined !== redirect && redirect !== null && redirect !== '') ? Config.redirectUrl + '?redirect=' + redirect : Config.redirectUrl;
        const params = '&response_type=code&scope=snsapi_userinfo&agentid=' + Config.agentId + '#wechat_redirect';
        window.location.replace(url + encodeURI(client) + params);
      } else {
        getOpenId(code).then(res => {
          const { state, openId } = res;
          if (state === 300) {
            this.show = false;
            this.$store.dispatch('openIdLogin', res).then(() => {
              if (undefined !== redirect && redirect !== null && redirect !== '') {
                openRedirectUrl({ code: redirect }).then(res => {
                  const { data } = res;
                  if (data.state === 200 || data.state === 301) {
                    this.openUrl = data.url;
                    setTimeout(() => {
                      window.open(data.openUrl);
                    }, 1000);
                  }
                });
              } else {
                this.$router.push({ path: '/uc/mobile' });
              }
            });
          } else if (state === 200) { // 执行登录绑定
            this.openId = openId;
            this.show = true;
            this.getCode();
          } else {
            this.show = false;
            this.$router.push({ path: '/s/login' });
          }
        }).catch(() => {
          this.$router.push({ path: '/s/login' });
        });
      }
    }
  }
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-size: cover;
}

.title {
  margin: 0 auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 385px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  display: inline-block;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle
  }
}
</style>
